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charset=UTF-8 Content-Transfer-Encoding: 8bit The drm_test_rect_calc_hscale and drm_test_rect_calc_vscale unit tests intentionally trigger warning backtraces by providing bad parameters to the tested functions. What is tested is the return value, not the existence of a warning backtrace. Suppress the backtraces to avoid clogging the kernel log and distraction from real problems. Tested-by: Linux Kernel Functional Testing Acked-by: Dan Carpenter Acked-by: Maíra Canal Cc: Maarten Lankhorst Cc: David Airlie Cc: Daniel Vetter Signed-off-by: Guenter Roeck --- v2: - Rebased to v6.9-rc1 - Added Tested-by:, Acked-by:, and Reviewed-by: tags v3: - Rebased to v6.9-rc2 drivers/gpu/drm/tests/drm_rect_test.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/gpu/drm/tests/drm_rect_test.c b/drivers/gpu/drm/tests/drm_rect_test.c index 76332cd2ead8..66851769ee32 100644 --- a/drivers/gpu/drm/tests/drm_rect_test.c +++ b/drivers/gpu/drm/tests/drm_rect_test.c @@ -406,22 +406,38 @@ KUNIT_ARRAY_PARAM(drm_rect_scale, drm_rect_scale_cases, drm_rect_scale_case_desc static void drm_test_rect_calc_hscale(struct kunit *test) { + DEFINE_SUPPRESSED_WARNING(drm_calc_scale); const struct drm_rect_scale_case *params = test->param_value; int scaling_factor; + /* + * drm_rect_calc_hscale() generates a warning backtrace whenever bad + * parameters are passed to it. This affects all unit tests with an + * error code in expected_scaling_factor. + */ + START_SUPPRESSED_WARNING(drm_calc_scale); scaling_factor = drm_rect_calc_hscale(¶ms->src, ¶ms->dst, params->min_range, params->max_range); + END_SUPPRESSED_WARNING(drm_calc_scale); KUNIT_EXPECT_EQ(test, scaling_factor, params->expected_scaling_factor); } static void drm_test_rect_calc_vscale(struct kunit *test) { + DEFINE_SUPPRESSED_WARNING(drm_calc_scale); const struct drm_rect_scale_case *params = test->param_value; int scaling_factor; + /* + * drm_rect_calc_vscale() generates a warning backtrace whenever bad + * parameters are passed to it. This affects all unit tests with an + * error code in expected_scaling_factor. + */ + START_SUPPRESSED_WARNING(drm_calc_scale); scaling_factor = drm_rect_calc_vscale(¶ms->src, ¶ms->dst, params->min_range, params->max_range); + END_SUPPRESSED_WARNING(drm_calc_scale); KUNIT_EXPECT_EQ(test, scaling_factor, params->expected_scaling_factor); } -- 2.39.2 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0ABACCD1299 for ; Wed, 3 Apr 2024 14:34:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Wed, 03 Apr 2024 06:19:50 -0700 (PDT) From: Guenter Roeck To: linux-kselftest@vger.kernel.org Subject: [PATCH v3 05/15] drm: Suppress intentional warning backtraces in scaling unit tests Date: Wed, 3 Apr 2024 06:19:26 -0700 Message-Id: <20240403131936.787234-6-linux@roeck-us.net> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240403131936.787234-1-linux@roeck-us.net> References: <20240403131936.787234-1-linux@roeck-us.net> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: x86@kernel.org, loongarch@lists.linux.dev, linux-doc@vger.kernel.org, dri-devel@lists.freedesktop.org, Brendan Higgins , linux-riscv@lists.infradead.org, David Airlie , Arthur Grillo , =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= , linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, Daniel Diaz , linux-sh@vger.kernel.org, Naresh Kamboju , =?UTF-8?q?Ma=C3=ADra=20Canal?= , Dan Carpenter , Linux Kernel Functional Testing , Guenter Roeck , Kees Cook , Arnd Bergmann , Maarten Lankhorst , Maxime Ripard , David Gow , Daniel Vetter , linux-arm-kernel@lists.infradead.org, kunit-dev@googlegroups.com, linux-parisc@vger.kernel.org, net dev@vger.kernel.org, linux-kernel@vger.kernel.org, Thomas Zimmermann , Andrew Morton , linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" The drm_test_rect_calc_hscale and drm_test_rect_calc_vscale unit tests intentionally trigger warning backtraces by providing bad parameters to the tested functions. What is tested is the return value, not the existence of a warning backtrace. Suppress the backtraces to avoid clogging the kernel log and distraction from real problems. Tested-by: Linux Kernel Functional Testing Acked-by: Dan Carpenter Acked-by: Maíra Canal Cc: Maarten Lankhorst Cc: David Airlie Cc: Daniel Vetter Signed-off-by: Guenter Roeck --- v2: - Rebased to v6.9-rc1 - Added Tested-by:, Acked-by:, and Reviewed-by: tags v3: - Rebased to v6.9-rc2 drivers/gpu/drm/tests/drm_rect_test.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/gpu/drm/tests/drm_rect_test.c b/drivers/gpu/drm/tests/drm_rect_test.c index 76332cd2ead8..66851769ee32 100644 --- a/drivers/gpu/drm/tests/drm_rect_test.c +++ b/drivers/gpu/drm/tests/drm_rect_test.c @@ -406,22 +406,38 @@ KUNIT_ARRAY_PARAM(drm_rect_scale, drm_rect_scale_cases, drm_rect_scale_case_desc static void drm_test_rect_calc_hscale(struct kunit *test) { + DEFINE_SUPPRESSED_WARNING(drm_calc_scale); const struct drm_rect_scale_case *params = test->param_value; int scaling_factor; + /* + * drm_rect_calc_hscale() generates a warning backtrace whenever bad + * parameters are passed to it. This affects all unit tests with an + * error code in expected_scaling_factor. + */ + START_SUPPRESSED_WARNING(drm_calc_scale); scaling_factor = drm_rect_calc_hscale(¶ms->src, ¶ms->dst, params->min_range, params->max_range); + END_SUPPRESSED_WARNING(drm_calc_scale); KUNIT_EXPECT_EQ(test, scaling_factor, params->expected_scaling_factor); } static void drm_test_rect_calc_vscale(struct kunit *test) { + DEFINE_SUPPRESSED_WARNING(drm_calc_scale); const struct drm_rect_scale_case *params = test->param_value; int scaling_factor; + /* + * drm_rect_calc_vscale() generates a warning backtrace whenever bad + * parameters are passed to it. This affects all unit tests with an + * error code in expected_scaling_factor. + */ + START_SUPPRESSED_WARNING(drm_calc_scale); scaling_factor = drm_rect_calc_vscale(¶ms->src, ¶ms->dst, params->min_range, params->max_range); + END_SUPPRESSED_WARNING(drm_calc_scale); KUNIT_EXPECT_EQ(test, scaling_factor, params->expected_scaling_factor); } -- 2.39.2 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 720E2CD128A for ; Wed, 3 Apr 2024 13:20:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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